当ListView.builder顶部附近的项的高度被缓存但已更改时，如何从animateTo获取正常行为？

import 'package:flutter/material.dart';

class MyListView extends StatefulWidget {
  @override
  _MyListViewState createState() => _MyListViewState();
}

class _MyListViewState extends State<MyListView> {
  final ScrollController _scrollController = ScrollController();

  @override
  Widget build(BuildContext context) {
    return ListView.builder(
      controller: _scrollController,
      itemCount: 100, // 列表项的总数
      itemBuilder: (context, index) {
        return ListTile(
          title: Text('Item $index'),
        );
      },
    );
  }

  // 滚动到指定项的位置
  void scrollToItem(int index) {
    final double itemHeight = 56.0; // 列表项的高度
    final double offset = itemHeight * index; // 目标项的位置
    _scrollController.animateTo(
      offset,
      duration: Duration(milliseconds: 500),
      curve: Curves.easeInOut, // 动画曲线
    );
  }
}

// 使用示例
void main() {
  runApp(MaterialApp(
    home: Scaffold(
      appBar: AppBar(
        title: Text('My ListView'),
      ),
      body: MyListView(),
      floatingActionButton: FloatingActionButton(
        onPressed: () {
          MyListView().scrollToItem(10); // 滚动到第10项
        },
        child: Icon(Icons.arrow_downward),
      ),
    ),
  ));
}